MGB2 superconducting wire material and manufacturing method therefor

A method for manufacturing an MgB2 superconducting wire material in which an MgB2 filament is covered with an outer layer material, the method comprising:

• a precursor particle synthesizing step of applying an impact to magnesium powder and boron powder to an extent that MgB2 is not clearly generated to generate precursor particles in which boron particles are dispersed inside a magnesium matrix;
• a filling step of filling a metal tube with the precursor particles;
• a wire forming step of processing the metal tube filled with the precursor particles into a wire material;
• and
• a heat treatment step of heat-treating the wire material to synthesize MgB2, wherein
• a swaging is included as a part of the wire forming step;
• wherein the outer layer material contains a plurality of materials;
• wherein at least one of the plurality of materials is copper, aluminum, silver, or a material having a Vickers hardness of less than 150 HV (test force:
• 25 gf).